baber/WOPTO huggingface dataset:
Patent GB-851765-A (GB)
Title: Improvements in disc-type sound-recording and reproducing machines
IPC: G11B17/032
Filed: 1958-04-18
Abstract: 851,765. Gramophones. BRYANS AEROQUIPMENT Ltd., and KING, A. April 17, 1959 [April 18, 1958], No. 12346/58. Class 40 (2). A record player for disc records comprises a case 10 containing a turntable 16 and has a liftable flap 20 which permits records to be inserted and removed edgeways between guides 28, a frusto-conical seating 32 in the flap supporting a centring member 34 which carries at its lower end a frusto-conical member for centrally locating a record D placed on the turntable, and a magnet 44 mounted above the centring member for co-operating with a magnetic ring 42 in the turntable to clamp the record disc thereon. Lifting the flap 20 causes a spring-loaded latch member 62 to slip beneath a tongue 60 of a U-shaped plate 56 so that another longer tongue thereon is impelled forward to eject the record on the turntable. Closing the flap down caused the latch 62 to be re-cocked.
Patent GB-918297-A (GB)
Title: Improvements in electron microscopes
IPC: H01J37/26
Filed: 1960-04-07
Abstract: 918,297. Electron microscopes. NIXON, W. C. March 22, 1961 [April 7, 1960], No. 12361/60. Class 39 (1). An electron microscope comprises means 16, Fig. 1, to form a stream of electrons emanating from a specimen 24, focusing means 29, 30 adapted to act upon said electrons so as to form a magnified image of a preselected area of said specimen capable of being viewed on a fluorescent screen 31, means 38 to project a further stream of electrons along said focusing means in an opposite direction to said first beam so as to produce a point-focused beam of electrons on a selected portion of the said predetermined area of said specimen for local area analysis thereof, and means responsive to the action of said further stream focused on said selected portion for technical examination and analysis of said selected area. The second electron gun 38 may be located beneath the fluorescent screen 31 with a hole 33 therein for the passage of the beam or may be located to one side with a refractor block 39, Fig. 3, to align the beam on to the axis of the focusing means. Thermionic emission from a heated surface, X-ray emission, light emission under the impact of an electron beam and electron diffraction phenomena of the specimen under the action of the second beam may be analysed by use of suitable apparatus. Methods of analysis are described other than by transmission through a thin specimen, e.g. reflection microscopy and the use of mirror field methods where a refractor block or magnetic field 50, Fig. 11, receives the imaging beam, throws it on to the surface of the specimen 49 and then projects it along the axis of the microscope. A method of ion-induced emission, Fig. 13 (not shown), is described where a beam of ions is directed towards the specimen, the surface of which emits electrons which form the imaging beam.
Patent GB-514257-A (GB)
Title: Improvements relating to welding and to welding-rods therefor
IPC: B23K35/30
Filed: 1938-04-27
Abstract: 514,257. Alloys for welding. LINDE AIR PRODUCTS CO. April 27, 1938, No. 12527. Convention date, May 27, 1937. [Class 82(i)] An iron alloy comprising from 2.75 to 3.15 per cent. of carbon, 2.25 to 3.5 per cent. of silicon, 0.5 to 1.0 per cent. of manganese, and vanadium or chromium or both in such proportion that the sum of the vanadium and onehalf of the chromium percentage is between 0.05 and 0.5 per cent., is employed as a welding metal for cast iron elements. Preferably nickel or copper, or both, are present, the sum of the copper and one-half of the nickel percentages being between 0.25 and 1.5 per cent. In making welding rods of the alloy a part of the silicon, for example .25 to 1.5 per cent., is preferably added to the molten metal in the ladle.
Patent GB-167550-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L5/06
Filed: 1920-05-06
Abstract: 167,550. Bonehill, C. G. May G, 1920. Valves.-In a two-strode engine in which a sliding sleeve B moves between the working piston C and the cylinder, the cylinder is of two diameters, as described in Specification 119,057, the lower portion forming a pump space i<a>. The sleeve is driven from an eccentric P working on the slotted crank-pin Q. The lower portion of the sleeve is extended, and governs an inlet port L or inlet ports or an inlet valve. On the downward stroke of the sleeve, the charge is drawn in through the port L and passes from the space I<a> through ports V in the sleeve into the annular space I between the sleeve and the piston. The charge is compressed on the upward stroke of the piston and the sleeve, and, when the top of the annular space I reaches recesses B<1> in the sleeve, the charge passes into the combustion chamber, in which it is further compressed by the piston. To reduce resistance to the upward movement of the sleeve by the portion of the charge remaining in the space I<a>, this portion, when a port Y in the sleeve registers with a recess X in the cylinder wall, passes into a chamber W in the sleeve. The exhaust port or ports M communicate with an annular exhaust passage N and are controlled by the top edge of, or by a port or ports in, the sleeve B, so as to remain open for 140‹ or more of the cycle.
Patent GB-318121-A (GB)
Title: Improvements in or relating to electrical systems for the transmission or reception of pictures, diagrams or other representations
IPC: H04N1/36
Filed: 1928-04-28
Abstract: 318,121. Fulton, O. April 28, 1928. Synchronous movements.-In a copying- telegraph, in which a transmitter has a rotating drum carrying the picture and exploring apparatus and which moves axially relatively to the drum and produces signals in accordance with the tone values of the picture, and a receiver has a drum Z on which the picture is traced by recording- means S, the receiving-drum is synchronized once in every revolution by a signal from the transmitter of the same kind, and conducted over the same channel, as the picture signals. The signals are applied to a detecting or amplifying thermionic valve V, and, when signal current flows in the anode circuit, a relay R closes contacts K to energize an electromagnet H the armature of which is then withdrawn from a catch on the drum. Specifications 248,837 and 307,365 are referred to.
Patent GB-126936-A (GB)
Title: Improvements in Hulls for Vessels in Reinforced Concrete.
Inventor: GALLINGANI LUIGI
IPC: B63B5/20
Filed: 1918-08-01
Abstract: 126,936. Gallingani, L. May 17, 1918, [Convention date]. Concrete ships. - Reinforced-concrete vessels are constructed with an inner skin or lining of wood partly embedded in the concrete so as to contribute to the strength of the vessel. The planks 3 which are fairly thick are disposed longitudinally in the spaces between the transverse and longitudinal ribs of the hull; they are fitted together with tongue-and-groove jonts 5, and are secured firmly in the cement by dovetails. The ends of the planks are also dovetailed into the transverse ribs.
Patent GB-798517-A (GB)
Title: N.n-di-(carboxyalkylcarbamyl) polymethylenediamines
Inventor: MCKAY ARTHUR FERGUSON
Filed: 1956-04-24
Abstract: The invention comprises compounds of the general formula: ROOC(CH2)nNHCONH(CH2)mNHCONH (CH2)nCOOR, where n is 3-18, m is 2-18 and R is hydrogen, ammonium, alkali metal, or an alkyl radical containing 1-18 carbon atoms, and also polymers of such compounds, obtained by heating alkylene diamine salts of acids of the said formula.  The compounds may be prepared by (1) oxidizing with H2O2 in aqueous solution at 10-60 DEG  C. preferably at 15-25 DEG  C., the corresponding thiourea compounds (R=H), described in Specification 798,516; or (2) reacting an alkali metal salt of an amino acid H2N(CH2)nCOOM with a di-isocyanate OCN (CH2)mNCO in aqueous solution. Acidification of the reaction mixtures precipitates the free acid, which may then be esterified with an alkanol containing 1-18 carbon atoms, or with an unsaturated alcohol, such as allyl alcohol.  The di-allyl esters are useful as cross-linking agents in preparing polyester thermosetting resins.  The free acids may be reacted with an alkylene diamine NH2(CH2)pNH2, where p is 2-18, to form the mono-salt in a solvent such as dimethylformamide or aqueous ethanol, these salts being convertible to new polyurea-polyamide compounds of formula: HO[OC(CH2)nNHCONH(CH2)m NHCONH(CH2)nCONH(CH2)pNH]xH, where x is a large integer.  In examples, the following compounds are prepared (R, n and m given): (1) H, 5, 2; (2) H, 5, 3; (3) H, 3, 4; (4) H, 3, 5; (5) H, 5, 5; (6) H, 5, 6; (7) CH3, 5, 4; (8) CH3, 5, 6; (9) n-C14H29, 5, 2; (10) n-C14H29, 5, 3; (11) allyl, 5, 4.  The following amine salts are prepared (n, m, p given): (12) 5, 2, 2; (13) 5, 2, 6; (14) 5, 6, 6.  The following amine salts are polymerized (n, m, p given): (15) 5, 4, 10; (16) 5, 4, 6; (17) 5, 4, 4; (18) 5, 6, 6; (19) 5, 2, 2; (20) 5, 2, 6.ALSO:Polyurea-polyamides of the formula HO[OC(CH2)nNHCONH(CH2)mNH CONH(CH2)nCONH(CH2)qNH]xH where n is 3-18, m is 2-18, p is 2-18 and x is a large integer, are prepared by heating, at high vacuum in an inert atmosphere, the amine salts of formula HOOC.(CH2)nNHCONH(CH2)mNHCO NH(CH2)nCOOH.NH2(CH2)qNH2.  Th polymers are hard flexible solids which adhere strongly to glass and metal on cooling from the molten state.  A table shows the metling points of polymers formed from various amine salts in which n = 5.  Specification 798,516 is referred to.
Patent GB-799887-A (GB)
Title: Improvements in or relating to electrometers
IPC: H01J47/04
Filed: 1956-04-26
Abstract: 799,887. Electroscopes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 26, 1956 [April 29, 1955], No. 12845/56. Drawings to Specification. Class 37. An electroscope has leaves formed from polyethylene terephthalate. The leaves have a thickness of the order of 15 microns and are conductively coated with metal or carbon. The instrument forms a pocket dosimeter which has a built-in generator consisting of a mercury droplet which is shaken in a tube. The charge is transferred to the leaves via a switch operated by a magnet which is external to the instrument. To avoid errors due to mechanical hysteresis the leaves may be mounted with an initial tension or the material of the leaves may have a pre-tensile loading.
Patent GB-341361-A (GB)
IPC: C01B32/55
Filed: 1930-04-25
Abstract: 341,361. Solidifying carbon dioxide. AKT. - GES. FœR KOHLENS€UREINDUSTRIE, 61, Mauerstrasse, Berlin. April 25, 1930, No. 12864. Convention date, April 27, 1929. [Class 8 (ii).] Liquid carbon dioxide is allowed to expand at a pressure well above the freezing pressure in an enclosed space c along the sides of a block of carbon dioxide ice which is thus increased in size. At starting the liquid is allowed to flow into the space from a pipe b while valves f, k are fully open. The liquid forms snow which collects on a sieve or plate d, which may however be omitted if the outlet e is wide enough to avoid obstruction. The valve k is then closed so as to maintain 20 atmospheres pressure by which the liquid is forced around the sides of the solid and compresses it. A part only of the block formed may be sawn off, a block being formed from the remainder.
Patent GB-1469831-A (GB)
Title: Single-lens reflex camera
IPC: G03B7/089
Filed: 1974-03-22
Abstract: 1469831 Camera exposure control ASAHI KOGAKU KOGYO KK 22 March 1974 [23 March 1973] 12889/74 Heading G2A An SLR camera 1 having a TTL light measurement system has a detachable casing 1 containing a memory section 18, a computation section 14 and a control section 16. When the casing is detached, the camera is operable manually. When the casing is attached, a mechanical connection 12 actuates section 18 to memorize the signal from the TTL light measurement system, and the shutter or diaphragm is automatically controlled, electrical connections being provided between the casing and camera. The mechanical connection 12 may open a memory switch SW in section 18 or may be used to clamp a meter needle.
Patent GB-1130476-A (GB)
Title: Apparatus for mixing and dispensing materials
IPC: B24B57/00
Filed: 1967-03-20
Abstract: 1,130,476. Dispensing liquids by adhesion apparatus. F. MELCHIORRE. March 20, 1967 [March 18, 1966], No.12894/67. Heading F1R. [Also in Division B1] Apparatus for mixing and dispensing a suspension of an abrasive material comprises a vessel 1 having a rotatable vertical shaft carrying a stirrer 3 and a ring 7a which frictionally engages and rotates a disc 8. This disc 8 raises a film of the suspension which is removed by a scraper 10 and delivered into a collector 11. The quantity delivered may be varied by adjustment about a pivot 15 of the scraper 10, or by varying the rotational speed of the disc, which may be interchangeable with others of different size.
Patent GB-654991-A (GB)
Title: A process for the preparation of products with improved properties, suitable for use as detergents, wetting agents, and the like
IPC: C11D11/00
Filed: 1948-05-11
Abstract: Detergent compositions comprising mixtures of a soap and a synthetic surface-active soapless detergent of the type consisting of a salt of a sulphated higher alcohol or a sulphonated alkyl mononuclear aromatic hydrocarbon of alkyl group of at least 10 carbon atoms are prepared by causing such quantities of the soap to be formed in an aqueous medium of the soapless detergent as to ensure that the fatty acid content by weight of the product thus obtained is at most equal to and preferably considerably lower than the content of the soapless detergent.  An aqueous solution of the soapless detergent is mixed with the requisite quantity of a higher fatty acid or its glyceride and the mixture then neutralized by the addition of a base.  Fatty acids and oils of vegetable and animal origin may be used and also synthetic higher fatty acids, e.g. prepared by the oxidation of paraffin wax.  Fatty acids and their glycerides of high melting-point are preferred, such as palmitic acid, stearic acid and palm oil fatty acids and palm oil, tallow, bone fat, partially hardened linseed oil or train oil.  Usual saponifying agents are used such as sodium or potassium hydroxide or carbonate, triethanolamine or other alkylolamine.  Using fatty acids, room temperature may be used but 50-70 DEG  C. is preferred; with oils or fats, above 70 DEG  C. is generally necessary, e.g. 90-100 DEG  C.  The soapless detergents preferred comprise the water-soluble salts of the acid sulphuric acid esters derived from higher alkenes or corresponding secondary alcohols such as the product known under the Registered Trade Mark "Teepol" and consisting of secondary sodium alkyl sulphates.  The ratio between fatty acid and soapless detergent in the final product is at least 5 : 100 and is preferably between 10 : 90 and 35 : 65 to give products like soft soap; to produce hard products, 50 : 50 should be used.  With "Teepol" and similar soapless detergents, the ratio is preferably between 15 : 85 and 20 : 80.  The final products may contain free fatty acids or glycerides by effecting only partial saponification.  The products may be dried or salted out or converted to dry powders.  The products may be compounded with water-soluble alkaline-reacting salts such as alkali silicates, phosphates, borates and carbonates, particularly sodium metasilicate or water-glass or mixtures thereof, and tetrasodium pyrophosphate.  Specifications 303,379, [Class 91], and 587,279 are referred to.
Patent GB-1206467-A (GB)
Title: Improvements in the construction of contraction joints in concrete slabs
Inventor: MOIGNARD ARTHUR WILLIAM
IPC: E04B1/68
Filed: 1967-03-20
Abstract: 1,206,467. Concrete contraction joints. EXPANDITE Ltd. 5 March, 1968 [20 March, 1967], No. 12992/67. Heading E1B. A crack-inducing insert for a horizontal or vertical reinforced concrete slab 10 having two layers of reinforcement 2 comprises a flat or ribbed sheet 11 of rubber plastics or other material which, before pouring the concrete, is fixed to the reinforcement either by wires 5 passing through eyelets or hooks 6, or by loops through which the reinforcement passes. As shown the sheet 11 has integral concretekeying ribs 12 whereby it acts as a waterstop. In modifications the sheeting is flat, and there may then be provided, Fig. 3 (not shown), a  separate ribbed waterstop sheet keyed across the concrete face.
Patent GB-564284-A (GB)
Title: Method of preparing copolymers of vinyl cyanide and copolymers thus produced
IPC: C08F220/44
Filed: 1942-09-15
Abstract: Vinyl cyanide or a derivative thereof is reacted in the presence of an alcohol, water, and an acid catalyst to form inter-polymers of vinyl cyanide with esters of acrylic acid.  The specified range of reaction temperature is 100-150 DEG  C.  Specified derivatives of vinyl cyanide are a -methyl vinyl cyanide, a -ethyl vinyl cyanide, a -chloro vinyl cyanide and a -bromo vinyl cyanide. Suitable alcohols are methyl, ethyl, propyl, isopropyl, butyl, isobutyl or amyl. Mentioned catalysts for the hydrolysis of the nitrile group are sulphoric, hydrochloride, phosphoric and chlor-acetic acids.  In an example, acrylonitrile is added at 100-120 DEG  C. to a mixture of ethyl alcohol and concentrated sulphuric acid, and the mixture heated to 125 DEG  C. for 30 minutes. Ethyl alcohol and water was added and heating continued at 100-110 DEG  C.  The product was cooled, poured into water and air dried.  It was insoluble in benzene, gasoline, alcohol, and acetone, but dissolved in glacial acetic acid to give a solution from which films could be cast.  Nitrogen analysis indicated the presence of about 20 per cent of poly-acrylonitrile in the product.
Patent GB-670933-A (GB)
Title: Improvements in or relating to devices for increasing the maximum speed of vehicles or craft driven by internal combustion engines
IPC: F02B27/00
Filed: 1950-05-24
Abstract: 670,933. Charging; cooling and silencing exhaust; carburetting apparatus, LEGROS, R. G. May 24, 1950 [May 30, 1949], No. 13025/50. Classes 7(ii) and 7(iii) The pressure of air delivered to the normal air inlet of an internal combustion engine mounted on a motor vehicle or aircraft is increased by the provision of an open-ended hollow body B, Fig. 1, having one end connected to the normal air inlet 2, the other end 1, preferably of at least twice the cross-section of the inlet 2, opening in the direction of movement of the vehicle or craft, and the intermediate portion shaped so as to have a maximum crosssection 6 at least five times that of the end 1 and preferably situated nearer to that end than to the end 2. As shown, applied to an engine having a carburetter 3, the carburetter and the fuel supply tank thereto are pressurized by connecting the otherwise sealed air spaces of the carburetter float chamber and the tank to a pipe 7 taken from the body 5 slightly to the rear of the maximum section 6. In a carburetter using a needle valve the cross-section of this is also suitably reduced. To prevent pulsations in the air inlet stream, the volume of the body 5 is at least three times that of the working space of an engine e cylinder. The velocity of the engine exhaust stream may also be enhanced by the provision, in the rearwardly directed normal coned mouth 13, Fig. 5, of the .exhaust pipe 18, of a deflector cone 14 giving an annular exit orifice 15 having a cross-section at least equal to that of the pipe 18. The mouth 13 may have a flared rim and may be provided with brazed-on cooling ribs 17 which, together with the rest of the external surface of the mouth 13, may be treated with an anti-rust process involving the application of black paint or enamel in an oven.
Patent GB-639103-A (GB)
Title: Improvements in metal tube expanders
IPC: B21D39/20
Filed: 1948-05-12
Abstract: 639,103. Making tubes. HARRISONVENNING TOOL CO., Ltd., and HARRISON, G.W. May 12, 1948, No. 13072. [Classes 83 (ii) and 83 (iv)] Stamping.-A hand tool for expanding copper lead, &c. tube ends 12 comprises a split die 11 surrounding the tube end and held in a hinged hand-held clamp 1 tightened by a hand screw 8; and a rubber block 18 fitting in the tube 12. A piston 17 is pulled endways by a nut 19 and tommy bar 20 to compress the rubber against a die abutment 14 and thereby to expand the rubber radially and force the tube end 12 into a die recess 13. The die may be externally ribbed for strength and be made by casting (Fig. 3, not shown). According to the Provisional Specification the die parts may be hinged and the die abutment may be a separate plate. The die recesses may be eccentric, and the tube may be expanded away from the end.
Patent GB-559028-A (GB)
Title: Curable thermo-plastic material
IPC: C08L1/08
Filed: 1942-09-16
Abstract: 559,028. Cellulose derivative compositions. ENGEL, W. Sept. 16, 1942, No. 13085. [Class 2 (ii)] [Also in Groups VIII and XXIII] A curable thermoplastic composition comprises cellulose nitrate or ethyl cellulose, polyvinyl acetate or a polyvinyl acetate-acetal, a urea- or melamine-formaldehyde resin, and a plasticizer. The plasticizer may be dibutyl phthalate, tricresyl phosphate, or castor oil. When urea-formaldehyde is used, bitumen may be incorporated in the composition to plasticize the urea resin so as to obtain a thermo-setting product which remains somewhat plastic after a heat-condensation treatment. Compounding of the ingredients may be effected by dry mixing, or by dissolving them in solvents and then evaporating the solvents, or by dissolving them in solvents, precipitating the mixture from the solution, and then mechanically working the dough. The composition may be used in sheet form or may be moulded to any desired shape. It may be set by a heat treatment, or if accelerators are present it will set on ageing. The composition may be pressed or calendered into sheet form on or between canvas or other textile fabric and may then be heat cured. Canvas or other textile fabric or paper may be impregnated with solutions of the material. Gaskets and washers may be produced by pressing or calendering the composition in sheet form on to a paper, cardboard or other suitable base, or by impregnating the base, preferably with solutions of increasing viscosity, and curing by heat or lapse of time. The composition may be used to unite the laminations of laminated wood. The laminae of wood impregnated with the composition or sandwiched with layers of the composition, impregnated paper, or layers of paper and composition, are pressed together and heated. Specification 345,521 is referred to.
Patent GB-745001-A (GB)
Title: Improvements in iron recovery
IPC: C21B13/12
Filed: 1953-05-11
Abstract: 745,001. Reducing oxidic iron ores. UDY, M. J. May 11, 1953 [March 10, 1953], No. 13095/53. Class 72. Metallic iron is produced from iron oxide material by placing a finely divided charge comprising iron oxide material, fluxing material and a solid carbonaceous reducing material on the surface of a slag bath maintained at a temperature high enough to provide all the heat required to melt the charge and reduce the iron oxide by combined electric arc and resistance heating and separating the iron produced. The amount of carbonaceous material in the charge may be insufficient to introduce more than 2 per cent of carbon into the iron. As shown, the charge 17 is fed from a hopper 23 by a conveyer 24 down the sides of an electric furnace 10 on to the surface of a bath of slag so that the amount of charge building round the electrodes is kept at a minimum. The electrodes may be maintained between ¢ inch above the surface of the slag and 2 inches below the surface. If the charge contains one or more of the non-ferrous elements As, Ni, Co, Cu, S, and P the amount of reducing agent is controlled to reduce only these non-ferrous elements and a small portion of the iron oxide. The non- ferrous elements are removed in solution in the iron and the remainder of the charge mixed with additional carbonaceous material is further reduced to produce iron. Specification 741,844 is referred to.